JP2006255127A - Orthodontic treatment support system and indicator member and arrangement apparatus used in the system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an orthodontic treatment support system capable of generating accurately a desired estimated dentition image after orthodontic treatment and also capable of aligning a dentition image before orthodontic treatment and the desired estimated dentition image after orthodontic treatment with respect to each other easily and accurately, and also to provide an indicator member and an arrangement apparatus used in the system. <P>SOLUTION: The orthodontic treatment support system 1 comprises the indicator members 4 and 5 for indicating reference positions of a dentition model before orthodontic treatment 2 and an estimated dentition model after orthodontic treatment 3 respectively, the arrangement apparatus 6 for arranging the indicator members 4 and 5, an image data generating means 11 for generating image data 9 and 10 by photographing the dentition model before orthodontic treatment 2 and the estimated dentition model after orthodontic treatment 3, an image display means 14 for displaying a dentition image before orthodontic treatment 12 and an estimated dentition image after orthodontic treatment 13 on the basis of the image data 9 and 10, a position adjusting means 15 for adjusting display positions of the dentition image before orthodontic treatment 12 and the estimated dentition image after orthodontic treatment 13 with respect to each other, and a tooth position adjusting means 18 for adjusting display position of a tooth image 17. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an orthodontic treatment that supports a stepped orthodontic plan for orthodontic treatment by adjusting the display position of a tooth image included in a two-dimensional or three-dimensional dental image displayed on a screen. The present invention relates to a support system, and an index member and an arrangement device used therefor.

JP 2004-267790 A

  For example, in Patent Document 1, an orthodontic orthodontic model made of gypsum made by casting from a tooth before orthodontic treatment of a patient is imaged using a scanning device such as a laser to generate orthodontic image data. The pre-correction dentition image based on the generated pre-correction dentition image data is presented so as to be visually recognized using a computer (including a CPU, a memory, a monitor, etc.), and the individual included in the presented pre-correction dentition image An orthodontic support system has been proposed in which a dental image is rearranged on a computer with reference to a prescription by a dentist and the like, and a post-orthodontic predicted orthodontic image is created after orthodontic correction. Each of the three-dimensional images created by such an orthodontic support system is used for an orthodontic stepwise orthodontic plan, preparation of an orthodontic mouthpiece, and the like.

  By the way, in such an orthodontic support system, since the tooth image included in the pre-correction dental image is rearranged on the computer to create a post-correction predicted dental image, the correction is performed on the computer. As a result of arranging the tooth images included in the post-correction predicted dentition image based only on the front dentition image, it is difficult to accurately create a desired post-correction predicted dentition image. In addition, even if a pre-correction dentition model before orthodontic and a post-correction predicted dentition model after orthodontic are prepared and imaged to generate a pre-correction dentition image and a post-correction predicted dentition image, It is difficult to align the front dentition image and the post-correction predicted dentition image.

  The present invention has been made in view of the above-mentioned various points, and an object of the present invention is to accurately create a desired post-correction predicted dentition image, and further, a pre-correction dentition image and a post-correction prediction dentition. It is an object of the present invention to provide an orthodontic support system that can easily and accurately align row images, and an index member and an arrangement device used therefor.

  The orthodontic support system of the present invention is configured so that the reference positions of the pre-orthodontic orthodontic model having an orthodontic shape before orthodontic and the predicted orthodontic model after orthodontic having a predicted orthodontic shape after orthodontic are set. An indicator member to be shown, a disposing device for disposing the indicator member on the pre-correction dental model and the post-correction predictive dental model in order to cause the index member to indicate the reference position, respectively. The pre-correction dentition model data and the post-correction prediction dentition model are respectively imaged, and the pre-correction dentition image data including the first index image data based on the index member arranged in the pre-correction dentition model and the post-correction prediction Image data generation means for generating post-correction predicted dentition image data including second index image data based on an index member disposed on the dentition model, and pre-correction dentition image data generated by the image data generation means And after correction The screen display means for displaying the pre-correction dentition image and the post-correction predicted dentition image based on each of the tooth measurement dentition image data, and the pre-correction dentition image and the post-correction prediction dentition image displayed on the screen by the screen display means Position adjusting means for adjusting the display position of the tooth based on the first and second index image data, and extracting the tooth image data from the pre-correction dentition image data and predicting the tooth after correction of the tooth image based on the extracted tooth image data Tooth position adjusting means for adjusting the display position with respect to the row image.

  According to the orthodontic support system of the present invention, the respective standards of the pre-orthodontic orthodontic model having an orthodontic shape before orthodontic and the predicted orthodontic model after orthodontic having a predicted orthodontic shape after orthodontic correction are provided. An index member indicating a position, a disposing device that disposes the index member on the pre-correction dental model and a post-correction predicted dental model in order to cause the index member to indicate the reference position, respectively. Each of the pre-correction dentition model and the post-correction predicted dentition model respectively imaged and the pre-correction dentition image data and the correction including the first index image data based on the index member arranged in the pre-correction dentition model Image data generating means for generating post-correction predicted dentition image data including second index image data based on an index member arranged in the post-predictive dentition model, and an orthodontic dentition generated by the image data generation means Image data and Screen display means for displaying a pre-correction dentition image and a post-correction prediction dentition image based on each of the post-correction prediction dentition image data, a pre-correction dentition image and a post-correction prediction dentition image displayed on the screen by the screen display means Position adjustment means for adjusting the mutual display position of the tooth based on the first and second index image data, and extracting the tooth image data from the pre-correction dentition image data and after correcting the tooth image based on the extracted tooth image data Since the tooth position adjusting means for adjusting the display position for the predicted dentition image is provided, a desired post-correction predicted dentition image can be accurately created based on the post-correction predicted dentition model, and Based on the first and second index image data, it is possible to easily and accurately align the pre-correction dentition image and the post-correction predicted dentition image.

  In a preferred example of the orthodontic support system of the present invention, the indicator member includes a plate-like body and a protrusion provided on the plate-like body, and the protrusion of the indicator member is more preferably. Is hemispherical. According to such a preferable example, by providing the index member in the pre-correction dental model and the post-correction predicted dental model, the pre-correction dental model and the post-correction predicted dental model are imaged and used for a computer or the like. The first index image data and the post-correction predicted dentition model that clearly indicate the reference position of the pre-correction dentition image based on the post-correction prediction dentition model based on each of the imaged index members The second index image data clearly showing the reference position of the post-correction predicted dentition image based on the pre-correction dentition image and the post-correction prediction dentition model based on the pre-correction dentition model It is possible to easily and accurately align the mutual display positions with the post-correction predicted dentition image.

  In a preferred example of the orthodontic support system of the present invention, the disposing device includes a holding unit that holds the index member, and a model tooth of each of the pre-correction orthodontic model and the post-correction predicted dental model that supports the holding unit. And a position adjusting mechanism that adjusts the position of the holding means relative to each of the pre-correction dental model and the post-correction predicted dental model. According to such a preferable example, since the support means is installed on the model tooth, the index member can be accurately arranged at any reference position with respect to the pre-correction dental model and the post-correction predicted dental model. In addition, the position of the holding member is similarly adjusted with respect to each of the pre-correction dental model and the post-correction predicted dental model by the position adjusting mechanism, and the position of the index member with respect to the pre-correction dental model and the post-correction predicted dental model. Therefore, the display position of the pre-correction dentition image and the post-correction predicted dentition image can be matched more accurately.

  In a preferred example of the orthodontic system of the present invention, the support means has a pointed tip and stands on the plurality of model teeth by abutting with the depressions on the occlusal surfaces of the model teeth at the pointed ends. A plurality of standing pins are provided. According to such a preferable example, the support means can be easily and accurately installed on the respective model teeth of the pre-correction dentition model and the post-correction predicted dentition model.

  In a preferred example of the orthodontic support system of the present invention, pre-correction dentition image data, post-correction predicted dentition image data, tooth image data, and data indicating the result of position adjustment by each of the position adjustment means and the tooth position adjustment means. Storage means for storing each is further provided. According to such a preferable example, once the above-mentioned various data are created by the orthodontic support system, the various data can be referred to later, and thus, the orthodontic stepwise correction. The production of orthodontic mouthpieces having various shapes corresponding to the plan and the stepwise correction plan can be suitably supported.

  According to the present invention, it is possible to accurately create a desired post-correction predicted dentition image, and to easily and accurately align the pre-correction dentition image and the post-correction dentition image. It is possible to provide an alignment correction support system and an index member and a disposing device used therefor.

  Next, an example of an embodiment of the present invention will be described in more detail based on an example shown in the figure. The present invention is not limited to these examples.

  1 to 10, the orthodontic support system 1 of this example includes a pre-orthodontic orthodontic model 2 having an orthodontic shape before orthodontic and a post-correction prediction having a predicted orthodontic shape after orthodontic. Index members 4 and 5 indicating the entire reference position of the dentition model 3, and the index members 4 and 5 are used to indicate the reference position to the index members 4 and 5, respectively. The disposing device 6 disposed on the dentition model 3 respectively, and the pre-correction dentition model 2 and the post-correction predicted dentition model 3 in which the index members 4 and 5 are respectively disposed by the disposing device 6 are imaged. FIG. 7 is a diagram based on the index member 5 disposed in the pre-correction predicted dentition model 3 and the pre-correction dentition image data 9 including the index image data 7 shown in FIG. 7 based on the index member 4 disposed in the pre-correction dentition model 2. Post-correction predicted dentition image data including the index image data 8 shown in FIG. 10 based on each of the image data generation means 11 for generating 10 and the pre-correction dentition image data 9 and the post-correction predicted dentition image data 10 generated by the image data generation means 11, shown in FIGS. 8 to 10. The screen display means 14 for displaying the image 12 and the post-correction predicted dentition image 13 on the screen, and the overall display positions of the pre-correction dentition image 12 and the post-correction prediction dentition image 13 displayed on the screen by the screen display means 14 are displayed. The whole position adjusting means 15 for adjusting based on the index image data 7 and 8, the tooth image data 16 and 125 are extracted from the pre-correction dentition image data 9, and the tooth image 17 based on the extracted tooth image data 16 and 125 and 127, a tooth position adjusting means 18 for adjusting the display position with respect to the post-correction predicted dentition image 13, pre-correction dentition image data 9, post-correction prediction dentition Image data 10, and a storage unit 19 for each store data indicative of results of the position adjustment by the respective tooth image data 16 and 125, as well as overall positioning means 15 and the tooth position adjusting means 18.

  The pre-orthodontic dentition model 2 is made by casting from a patient's teeth before orthodontic correction, and may be plaster or the like. In the post-correction predicted dentition model 3, the model teeth 21 arranged along the same dentition as the pre-correction dentition model 2 are separated from each other, and the model teeth 21 separated from each other are thermally softened (such as wax). It is connected again via a thermoplastic (model thermoplastic) gingiva 22. The post-correction predicted dentition model 3 can adjust the position of each model tooth 21 by heating and softening the model gingiva 22. The pre-correction dentition model 2 and the post-correction prediction dentition model 3 are provided on the base 20. The post-correction predicted dentition model 3 has a hypothetical predicted dentition shape in which the dentition shape after final orthodontic correction is predicted by adjusting the position of the model tooth 21. Note that the post-correction predicted dentition model 3 can be used as a basic mold in the production of an orthodontic mouthpiece or the like. The post-correction predicted dentition model 3 means a dentition model having a predicted dentition shape after orthodontic correction, and the position of the model tooth 21 is adjusted so that the predicted dentition shape is obtained. This means a dentition model to be processed and having the same dentition shape as that of the pre-correction dentition model 2, but when imaged by the image data generating means 11, It has a predicted dentition shape.

  Since the index members 4 and 5 are formed in the same manner as each other, the index member 4 will be described in detail below, and the index member 5 will be appropriately denoted by the same reference numerals and detailed description thereof will be omitted. .

  As shown in FIGS. 1 to 3 and FIGS. 5A and 5B, the index member 4 includes a rectangular plate-like body 25 fixed to the orthodontic orthodontic model 2 and a plate-like body 25. And three hemispherical protrusions 26 provided integrally in a line in the longitudinal direction. The number of the protrusions 26 is three in this example, but may be one, two, or four or more, and when a plurality of the protrusions 26 are provided on the plate-like body 25, such protrusions are provided. 26 may be arranged in two or more rows, or may be arranged in a staggered pattern. In addition, the protrusion 26 preferably has a hemispherical shape (including a semi-elliptical shape in a vertical cross section, an oval shape in a horizontal cross section, etc.), but it is sufficient that it protrudes from the plate-like body 25. For example, a cylindrical shape (including an elliptical cross section), a prismatic shape (including a triangular prism shape, a quadrangular prism shape (including a cubic shape and a rectangular parallelepiped shape), a polygonal column shape, etc.), a cylindrical shape (including a hollow elliptical cross section shape, etc.), Rectangular cylinder (including hollow cube, hollow cuboid, hollow polygon, etc.), cone (including elliptical cross section), pyramid (including triangular pyramid, quadrangular pyramid, polygonal pyramid, etc.) , A frustoconical shape (including an elliptical cross section) and a truncated pyramid shape (including a truncated triangular pyramid shape, a truncated quadrangular pyramid shape, and a truncated polygonal pyramid shape). Such an index member 4 functions as a member indicating the entire reference position of the pre-correction dental model 2 when it is disposed on the pre-correction dental model 2 by the disposing device 6. In addition, the reference position with respect to the whole orthodontic dentition model 2 is arbitrarily set by the operator of the placement device 6, and may be set, for example, on the midline 30 of the dentition model 2 before correction.

  As shown in FIGS. 1 to 5 (a) and (b), the disposing device 6 holds a holding means 31 for holding the index members 4 and 5, a holding means 31 and an orthodontic front orthodontic model 2 and Position adjustment mechanism for adjusting the positions of the support means 32 installed on the respective model teeth 21 of the predicted orthodontic model 3 after correction and the pre-correction predicted dental model 2 and the post-correction predicted dental model 3 of the holding means 31. 33.

  As shown in FIGS. 1 to 3 and FIGS. 5 (a) and 5 (b), the holding means 31 are arranged in a cross shape so as to be able to grip the plate-like body 25 in cooperation with each other. A gripping arm 41a, 41b, 41c and 41d and an approach and separation mechanism connected to each of the gripping arms 41a, 41b, 41c and 41d and causing the gripping arms 41a, 41b, 41c and 41d to approach and separate from each other. 42, and the gripping arms 41a, 41b, 41c, and 41d are moved closer to each other by the approaching and separating mechanism 42 to grip and hold the plate-like body 25 as shown in FIG. The holding arms 41a, 41b, 41c and 41d are separated from each other to release the holding state of the plate-like body 25 as shown in FIG. 5 (b).The holding means 31 includes, for example, three grip arms (not shown) arranged in a T shape instead of the grip arms 41a, 41b, 41c and 41d. The plate-like body 25 is grasped and held by being moved closer to each other by the approach and separation mechanism 42, while the holding state of the plate-like body 25 is released by moving the three gripping arms away from each other. Also good.

  The grip arms 41a and 41b facing each other in the X direction are formed in the same manner. The grip arms 41c and 41d facing each other in the Y direction orthogonal to the X direction are formed in the same manner. An elastic body (not shown) made of rubber (including natural rubber, synthetic rubber such as silicon rubber) or the like is attached to the portions of the grip arms 41a, 41b, 41c and 41d that are in contact with the index members 4 and 5. Has been.

  The approach and separation mechanism 42 moves the grip arms 41a and 41b toward and away from each other in the X direction and moves the grip arms 41c and 41d toward and away from each other in the Y direction by movement in the Z direction orthogonal to the X direction and the Y direction. In addition, a grip operation member 43 connected to one end of each of the grip arms 41a, 41b, 41c and 41d and a coil for biasing the grip operation member 43 so that the grip arms 41a, 41b, 41c and 41d approach each other. An urging member 44 made of a spring or the like, a grip operation member 43, and a housing 45 housing the urging member 44 are provided. Note that one end of the grip operation member 43 protrudes from the upper surface of the housing 45.

  The holding means 31 moves the gripping arms 41a, 41b, 41c, and 41d away from each other when the gripping operation member 43 is operated against the biasing force of the biasing member 44 in the Z direction, and is separated from each other. The index arm 4 or 5 disposed between the gripping arms 41 a and 41 b and between the gripping arms 41 c and 41 d is released from the operation against the urging force of the urging member 44 of the gripping operation member 43. 41a, 41b, 41c and 41d are gripped by approaching each other, and the index member 4 or 5 is held by gripping in this way.

  The support means 32 is brought into contact with a model tooth 21 of the pre-correction dental model 2 or the post-correction predicted dental model 3 on one side of the median line 30 by contacting the model tooth 21 with a pointed tip (hereinafter referred to as a pointed tip) 51. The abutment pins 52 and 53 that are respectively erected on the 21 and the model teeth 21 of the pre-correction dentition model 2 or the post-correction predicted dentition model 3 on the other side of the median line 30 are brought into contact with each other by the tip 51. Standing pins 54 and 55 erected on the model tooth 21, a bridging arm 56 that bridges the erection pins 52 and 53, and a bridge that bridges the erection pins 54 and 55, respectively. An arm 57, an X-direction shaft 58 extending between the standing pins 52 and 53 and between the standing pins 54 and 55 and connected to the bridging arms 56 and 57 and extending in the X direction; When arranged between 56 and 57 It has and a Z-direction axis 59 extending in the Z direction is connected to the X axis 58, the lower end of the Z axis 59, a housing 45 of the holding means 31 is mounted. Each of the standing pins 52 to 55 can be easily erected on the model tooth 21 by bringing the tip 51 into contact with the recess of the occlusal surface 21 a of the model tooth 21. In addition, the support means 32 replaces at least one of the upright pins 52, 53, 54, and 55, and forms the occlusal surface 21a of the model tooth 21 of the pre-correction dentition model 2 or the post-correction prediction dentition model 3. The mold taking part to be taken may have a standing pin (not shown) provided at the tip, and according to such a standing pin, the mold taking part having a shape complementary to the occlusal surface 21a. Is placed in contact with the occlusal surface 21a, so that the placement device 6 can be accurately and easily installed on the model tooth 21. The mold part may be made of a material such as silicon, rubber, clay, compound, alginate, wax, gypsum and the like.

  At each upper end of the upright pins 52 and 53, a connecting portion 60 is provided that is connected to the pin connector 65 so as to be rotatable in the R2 direction. Similarly to the standing pins 52 and 53, a connecting portion 60 that is rotatably connected to the pin connector 66 in the R2 direction is provided at the upper ends of the standing pins 54 and 55, respectively. The bridging arms 56 and 57 and the X-direction axis 58 are each cylindrical. The Z-direction shaft 59 includes a cylindrical portion 61 and an L-shaped portion 62 provided integrally with the lower end of the cylindrical portion 61, and the housing 45 is fixed to the lower end portion of the L-shaped portion 62. Has been. The bridging arms 56 and 57 extend in a direction (including the Y direction) intersecting the X direction.

  Such support means 32 is on one side of the midline 30 on standing pins 52 and 53 erected on the model tooth 21 on one side of the pre-correction dentition model 2 or the post-correction predicted dentition model 3. The holding means 31 is supported via the bridging arm 56, the X-direction axis 58, and the Z-direction axis 59, and on the other side of the midline 30, the pre-correction dentition model 2 or the post-correction prediction dentition model 3 The holding means 31 is supported on the standing pins 54 and 55 erected on the other model tooth 21 via the bridging arm 57, the X direction shaft 58 and the Z direction shaft 59.

  The position adjusting mechanism 33 is arranged so that the standing pins 52 and 53 are movable along the longitudinal direction of the bridging arm 56 with respect to the bridging arm 56 on one side of the midline 30 and in the R1 and R2 directions. A pin coupling body 65 that is pivotably coupled to the bridging arm 56, and the standing pins 54 and 55 on the other side of the midline 30 are movable and pivotable in the same manner as the pin coupling body 65. A pin coupling body 66 coupled to each of the entanglement arms 57 and one side of the midline 30, the bridging arm 56 is movable along the longitudinal direction of the bridging arm 56 with respect to the X-direction axis 58. An arm coupling body 67 coupled to the X-direction shaft 58 so as to be movable along the longitudinal direction of the direction shaft 58 and rotatable in the directions R1, R3 and R4, and a bridging arm on the other side of the midline 30 57 is connected to the arm 67. Similarly, the arm coupling body 68 coupled to the X-direction shaft 58 so as to be movable and rotatable, and the Z-direction shaft 59 are movable along the longitudinal direction of the X-direction shaft 58 with respect to the X-direction shaft 58. A shaft coupling body 69 coupled to the X-direction shaft 58, movable in the Z direction and rotatable in the R4 and R5 directions, standing pins 52 to 55, bridging arms 56 and 57, an X-direction shaft 58 and Z And a prohibiting member 70 (including prohibiting members 70a to 70f) made up of a set screw or the like that prohibits the movement and rotation of the direction shaft 59 in a releasable manner.

  Since the pin coupling bodies 65 and 66 and the arm coupling bodies 67 and 68 are configured similarly to each other, the pin coupling body 65 and the arm coupling body 67 will be described in detail below. About 68, the same code | symbol is attached | subjected to a figure suitably and these detailed description is abbreviate | omitted.

  The pin connection body 65 on the standing pin 52 side is provided in the connection main body 75, a through hole 76 provided in the connection main body 75 and the columnar bridging arm 56 inserted therein, and the connection main body 75. In addition, a connecting portion 78 connected to the connecting portion 60 of the standing pin 52 via a pin 77 is provided. The connecting body 75 is prohibited from moving relative to the bridging arm 56 and rotating in the R1 direction around the axis of the bridging arm 56 by the prohibiting member 70a pressed against the bridging arm 56 via the connecting body 75. However, when the prohibition by the prohibiting member 70a is cancelled, it is moved along the longitudinal direction of the bridging arm 56 together with the standing pin 52 and rotated in the R1 direction. It can be made to. Further, the standing pin 52 is prohibited from rotating in the R2 direction around the axis of the pin 77 with respect to the pin coupling body 65 by the prohibiting member 70b that presses the coupling portions 60 and 78 together. When the prohibition by the prohibiting member 70b is released, it can be rotated in the R2 direction. In addition, since the pin coupling body 65 on the standing pin 53 side is configured in the same manner as the pin coupling body 65 on the standing pin 52 side, hereinafter, the pin coupling body 65 on the standing pin 53 side is illustrated in the drawings. The same reference numerals are given as appropriate, and the detailed description thereof is omitted.

  The arm coupling body 67 is provided with a pair of coupling members 81 and 82 that are pivotably coupled to each other in the R3 direction around an axis extending in the Z direction, and is provided on the coupling member 81 and has a cylindrical bridge. A through-hole 83 into which the arm 56 is inserted and a through-hole 84 provided in the connecting member 82 and into which the columnar X-direction shaft 58 is inserted are provided. The connecting member 81 is prohibited from moving along the longitudinal direction of the bridging arm 56 and rotating in the R1 direction with respect to the bridging arm 56 by the prohibiting member 70c pressed against the bridging arm 56 via the connecting member 81. However, when the prohibition by the prohibiting member 70c is released, it can be moved along the longitudinal direction of the bridging arm 56 and rotated in the R1 direction. The connecting member 82 is moved along the X-direction axis 58 with respect to the X-direction axis 58 by the prohibiting member 70d pressed against the X-direction axis 58 via the connecting member 82 and the axis center of the X-direction axis 58 is the center. Although the rotation in the R4 direction is prohibited, when the prohibition by the prohibiting member 70d is released, it can be moved along the X-direction axis 58 and rotated in the R4 direction. Yes. The bridging arm 56 is rotated in the R3 direction by the rotation of the connecting member 81 in the R3 direction with respect to the connecting member 82.

  The shaft coupling body 69 is provided in the coupling main body 91, the through hole 92 provided in the coupling main body 91 and the columnar X direction shaft 58, and the coupling main body 91 and the Z direction shaft 59. And a through hole 93 into which the cylindrical portion 61 is inserted. The connecting body 91 is prohibited from moving along the X-direction axis 58 and rotating in the R4 direction with respect to the X-direction axis 58 by a prohibiting member 70e pressed against the X-direction axis 58 via the connecting body 91. However, when the prohibition by the prohibiting member 70e is released, it can be moved along the X direction axis 58 together with the Z direction axis 59 and rotated in the R4 direction. Further, the connection main body 91 is moved along the Z-direction axis 59 with respect to the Z-direction axis 59 and the axis of the Z-direction axis 59 by the prohibiting member 70f pressed against the cylindrical portion 61 via the connection main body 91. Although rotation in the R5 direction around the center is prohibited, when the prohibition by the prohibiting member 70f is released, it can be moved along the Z-direction axis 59 and rotated in the R5 direction. It has become.

  According to such an arrangement device 6, the index members 4 and 5 can be arranged at reference positions equivalent to each other with respect to the whole of the pre-correction dentition model 2 and the post-correction prediction dentition model 3, respectively. For example, as shown in FIG. 2, the placement device 6 is erected on the model tooth 21 other than the model tooth 21 corresponding to the tooth to be corrected.

  The image data generation means 11 includes one or more imaging devices 101 that image the pre-correction dentition model 2 and the post-correction predicted dentition model 3 under the same conditions. Thus, the pre-correction dentition image data 9 based on the pre-correction dentition model 2 and the post-correction prediction dentition image data 10 based on the post-correction prediction dentition model 3 are generated. The imaging device 101 may be configured to image the pre-correction dental model 2 and the post-correction predicted dental model 3 using a CCD, laser, X-ray, CT, CAT, MRI, or the like. In addition, the pre-correction dentition image data 9 and the post-correction predicted dentition image data 10 are transmitted to the storage unit 19 via the signal line 102 in this example. The pre-correction dentition image data 9 generated by the image data generation unit 11 includes tooth image data 16 and index image data 7. The post-correction predicted dentition image data 10 generated by the image data generation means 11 includes tooth image data and index image data 8 constituting the dentition shape after the orthodontics. The pre-correction dentition image data 9 and the post-correction predicted dentition image data 10 generated by the image data generation means 11 are composed of three-dimensional image data. The imaging device 101 is preferably a laser scanning device in relation to the protrusion 26.

  The screen display means 14, the overall position adjustment means 15, the tooth position adjustment means 18 and the storage means 19 are, for example, an arithmetic device such as a CPU, a storage device such as a memory, a monitor having a CRT, a TFT, a keyboard, a mouse, etc. The present invention is embodied by a computer having the operation device and a program stored in the computer.

  As shown in FIGS. 8 to 10, the screen display means 14 is a tertiary based on the pre-correction dentition image data 9 and the post-correction predicted dentition image data 10 supplied from the image data generation means 11 via the storage means 19. A display screen 111 for displaying the original pre-correction dentition image 12 and the post-correction predicted dentition image 13 is provided, and screen display as described above and below will be performed. As shown in FIGS. 8 and 9, the display screen 111 may be displayed on the screen as if the pre-correction dentition image 12 and the post-correction predicted dentition image 13 are overlapped, or as shown in FIG. The pre-correction dentition image 12 and the post-correction prediction dentition image 13 may be displayed side by side. When the pre-correction dentition image 12 and the post-correction predicted dentition image 13 to be displayed on the screen are three-dimensionally created, the screen display means 14 is based on the operation of an operation device such as a keyboard or a mouse. The angle at which the image 12 and the post-correction predicted dentition image 13 are displayed on the screen can be changed.

  As shown in FIG. 6, the position adjusting means 15 determines the entire display positions of the pre-correction dentition image 12 and the post-correction predicted dentition image 13 displayed on the display screen 111 based on the index image data 7 and 8. The overall position setting program 115 to be set in the above and the overall position for changing the overall display position of the pre-correction dentition image 12 displayed on the screen at the position set by the overall position setting program 115 with respect to the post-correction predicted dentition image 13 A change program 116. The entire position setting program 115 is executed based on the operation of an operation device such as a keyboard or a mouse, or according to the storage of the pre-correction dentition image data 9 and the post-correction predicted dentition image data 10 by the storage unit 19. It is stored in the storage means 19 so as to be automatically executed. The entire position change program 116 is stored in the storage unit 19 so as to be executed based on the operation of an operation device such as a keyboard and a mouse.

  The overall position setting program 115 reads the pre-correction dentition image data 9 and the post-correction predicted dentition image data 10 from the storage unit 19, and displays a display screen based on the index image data 7 included in the read pre-correction dentition image data 9. The display position of the index image 117 to be displayed on the screen 111 is set as a reference position, and the entire display position in the coordinate system having the X axis, Y axis, and Z axis (not shown) of the orthodontic dentition image 12 is set. Based on the index image data 8 included in the read post-correction predicted dentition image data 10, the display position of the index image 118 to be displayed on the display screen 111 is used as the reference position, and the X axis of the post-correction prediction dentition image 13 , The entire display position in the coordinate system having the Y axis and the Z axis (not shown) is set. The overall position setting program 115 may be configured so that the display positions of the index images 117 and 118 of the pre-correction dentition image 12 and the post-correction predicted dentition image 13 in the coordinate system coincide with each other. The entire display positions of the pre-correction dentition image 12 and the post-correction prediction dentition image 13 (except for the portion corresponding to the tooth image corresponding to the tooth to be corrected) are automatically matched in the computer. It becomes. The overall position setting program 115 generates overall position setting data 121 relating to the coordinate positions of the pre-correction dentition image 12 and the post-correction predicted dentition image 13 after setting the entire display position. The entire position setting data 121 is stored in the storage unit 19.

  The entire position change program 116 selects the pre-correction dentition image 12 or the post-correction prediction dentition image 13 on the display screen 111 based on the operation of the operation device such as a keyboard and a mouse, and the selected pre-correction dentition image 12. The entire display position in the coordinate system with respect to the predicted post-correction dentition image 13 or the entire display position in the coordinate system with respect to the pre-correction dentition image 12 of the selected post-correction predicted dentition image 13 is changed. The overall position change program 116 generates overall position change data 122 relating to the coordinate positions of the pre-correction dentition image 12 and the post-correction predicted dentition image 13 after the change of the entire display position. The entire position change data 122 is stored in the storage unit 19.

  As shown in FIG. 6, the tooth position adjusting means 18 includes tooth image data 16 corresponding to a tooth to be moved in orthodontic correction, and a tooth corresponding to a tooth to be moved in relation to the movement of the tooth in orthodontic correction. Extraction program 126 serving as an extraction means for extracting image data 125 from pre-correction dentition image data 9 and tooth images 17 and 127 based on tooth image data 16 and 125 extracted by extraction program 126 are displayed on screen 111. Tooth position setting program 128 that sets the position to be corrected with the display position of the pre-correction dentition image 12 as a reference, and correction of the tooth images 17 and 127 displayed on the display screen 111 at positions set by the tooth position setting program 128 Tooth position changing program 12 for changing the display position for the post-predicted dentition image 13 It is provided with a door.

  The extraction program 126 reads out the pre-correction dentition image data 9 from the storage means 19 and generates three-dimensional tooth image data 16 and 125 mainly based on the dentition shape data included in the read pre-correction dentition image data 9. Extract. The extracted tooth image data 16 and 125 are stored in the storage means 19.

  The tooth position setting program 128 reads out the tooth image data 16 and 125 from the storage unit 19, and sets the display positions of the tooth images 17 and 127 based on the read tooth image data 16 and 125 to the precorrected dentition image 12. Set mainly along the dentition shape included. The tooth position setting program 128 generates tooth position setting data 130 relating to the coordinate positions of the tooth images 17 and 127 after setting the display position. The tooth position setting data 130 is stored in the storage unit 19.

  The tooth position changing program 129 selects at least one of the tooth images 17 and 127 on the display screen 111 based on the operation of an operation device such as a keyboard and a mouse, and selects the selected tooth images 17 and 127. The display position in the coordinate system with respect to at least one post-correction predicted dentition image 13 is changed. The tooth position change program 129 generates tooth position change data 131 related to the coordinate positions of the tooth images 17 and 127 after the display position is changed. The tooth position change data 131 is stored in the storage unit 19.

  The storage means 19 embodied by a memory (including an HDD) or the like includes an overall position setting program 115, an overall position change program 116, an extraction program 126, a tooth position setting program 128 shown in FIGS. Tooth position change program 129, pre-correction dentition image data 9, post-correction predicted dentition image data 10, tooth image data 16 and 125, overall position setting data 121, overall position change data 122, tooth position setting data 130 and tooth It has a storage area for storing the position change data 131 in a freely readable manner.

  When using the orthodontic support system 1 described above, first, the orthodontic model 2 prepared based on the shape of the dentition before the orthodontic treatment of the patient and a specialist such as a dentist or a dental technician are prepared. A post-correction predicted dentition model 3 having an assumed predicted dentition shape after orthodontic correction, index members 4 and 5, and an arrangement device 6 are prepared.

  Next, the positions of the standing pins 52 to 55 with respect to the respective orthodontic front teeth model 2 so that each of the standing pins 52 to 55 is arranged on the model teeth 21 of the front orthodontic tooth model 2 by the position adjusting mechanism 33. After that, each of the standing pins 52 to 55 is erected on the model tooth 21 of the orthodontic front dentition model 2, so that the disposing device 6 is arranged as shown in FIGS. 2 to 4. Install on the row model 2. Next, the index member 4 is held by the holding means 31 of the disposing device 6 installed on the pre-correction dentition model 2, and the position of the held index member 4 with respect to the pre-correction dentition model 2 is adjusted by the position adjustment mechanism 33, In this way, the index member 4 is arranged with respect to the orthodontic dentition model 2. The plate-like body 25 of the index member 4 arranged by the arranging device 6 is fixed to the orthodontic dentition model 2 via wax or the like. After the index member 4 is fixed, the holding means 31 releases the holding of the index member 4 and removes the disposing device 6 from the orthodontic dentition model 2. Between the model teeth 21 where the standing pins 52 and 53 are erected and between the model teeth 21 where the erection pins 54 and 55 are erected, in particular, as shown in FIG. Intervened. Next, the disposing device 6 in the adjusted state by the position adjusting mechanism 33 when the index member 4 is disposed on the pre-correction dentition model 2 is installed on the post-correction predicted dentition model 3, and after the installation, the holding means The index member 5 is held by 31, and thus the index member 5 is set so that the position of the index member 5 with respect to the post-correction predicted dentition model 3 is equivalent to the position of the index member 4 with respect to the pre-correction dentition model 2. It arrange | positions in the prediction dentition model 3 after correction. The plate-like body 25 of the index member 5 arranged by the arrangement device 6 is fixed to the post-correction predicted dentition model 3 via wax or the like. After the index member 5 is fixed, the holding member 31 releases the holding of the index member 5 and removes the placement device 6 from the post-correction predicted dentition model 3. The indicator members 4 and 5 respectively disposed on the pre-correction dentition model 2 and the post-correction predicted dentition model 3 by the disposing device 6 are used as a whole reference for the pre-correction dentition model 2 and the post-correction prediction dentition model 3, respectively. Indicates the position. Note that the placement device 6 may place the index member 5 in the post-correction predicted dentition model 3 before the placement of the index member 4 in the pre-correction dentition model 2. In addition, the placement device 6 is an index for the post-correction predicted dentition model 3 in a state where the model teeth 21 are not separated from each other and have the same dentition shape as the pre-correction dentition model 2. The member 5 may be disposed.

  Next, the pre-correction dentition model 2 and the post-correction prediction dentition model 3 provided with the index members 4 and 5 are respectively imaged by the image data generation means 11 to obtain three-dimensional pre-correction dentition image data 9 and post-correction prediction. The dentition image data 10 is generated. The generated pre-correction dentition image data 9 and post-correction predicted dentition image data 10 are stored in the storage unit 19.

  Next, the overall display positions of the pre-correction dentition image 12 and the post-correction predicted dentition image 13 to be displayed on the display screen 111 by executing the overall position setting program 115 are set. After the entire position setting program 115 is executed, the pre-correction dentition image 12 and the post-correction predicted dentition image 13 are displayed on the display screen 111 by the screen display unit 14. Next, the entire position change program 116 based on the judgment of the computer operator executes the entire position change program 116 and the entire pre-correction predicted dentition image 13 of the pre-correction dentition image 12 displayed on the screen at the position set by the overall position setting program 115. Change the display position.

  Next, by executing the extraction program 126, the tooth image data 16 corresponding to the tooth to be moved in the orthodontic correction and the tooth image data 125 corresponding to the tooth to be moved in relation to the tooth movement in the orthodontic correction are corrected. The positions of the tooth images 17 and 127 extracted from the front tooth row image data 9 and displayed on the display screen 111 based on the extracted tooth image data 16 and 125 are determined by executing the tooth position setting program 128 and Set the display position as a reference. After the execution of the tooth position setting program 128, the tooth images 17 and 127 are displayed on the display screen 111 by the screen display unit 14.

  Next, by executing the tooth position changing program 129 based on the judgment of the computer operator, the display position of the tooth image 17 displayed on the screen at the position set by the tooth position setting program 128 with respect to the post-correction predicted dentition image 13 is The tooth image 17 is changed stepwise so as to approach the tooth image 137 included in the post-correction predicted dentition image 13. Each of the tooth position change data 131 of the tooth image 17 changed in stages in this way is stored in the storage means 19. Each of the tooth images 127 can change the display position in the same manner as when the display position of the tooth image 17 is changed. Note that the extraction program 126 may be executed before the overall position setting program 115.

  If the orthodontic support system 1 is used as described above, the above-described various data can be generated. The above-mentioned various data generated in this way is a plan for orthodontic treatment in a stepwise manner, or a dentition shaped dentition model corresponding to the dentition correction step and a dentition that is cast from the dentition model. This is convenient for making a mouthpiece for correction.

  According to the orthodontic support system 1 of the present example, the orthodontic orthodontic model 2 having an orthodontic shape before orthodontic and the predicted orthodontic model 3 having a predicted orthodontic shape after orthodontic correction. Index members 4 and 5 indicating the entire reference position, and the index members 4 and 5 are used as the pre-correction dental model 2 and the post-correction predicted dental model 3 so that the index members 4 and 5 indicate the reference position, respectively. Each of the placement device 6 to be placed and the pre-correction dentition model 2 and the post-correction predicted dentition model 3 in which the index members 4 and 5 are respectively provided by the placement device 6 are imaged to obtain the pre-correction dentition model 2. Pre-correction tooth image data 9 including index image data 7 based on the index member 4 disposed on the post-correction prediction tooth including index image data 8 based on the index member 5 disposed on the post-correction prediction tooth model 3 Image data generating means 1 for generating the column image data 10 And screen display means for displaying the pre-correction dentition image 12 and the post-correction prediction dentition image 13 based on the pre-correction dentition image data 9 and the post-correction prediction dentition image data 10 generated by the image data generation means 11, respectively. 14 and the overall position adjusting means 15 for adjusting the overall display position of the pre-correction dentition image 12 and the post-correction predicted dentition image 13 displayed on the screen by the screen display means 14 based on the index image data 7 and 8. A tooth position for extracting the tooth image data 16 and 125 from the pre-correction tooth image data 9 and adjusting the display position of the tooth images 17 and 127 on the post-correction predicted tooth image 13 based on the extracted tooth image data 16 and 125 Since the adjustment means 18 is provided, a desired post-correction predicted dentition image 13 can be accurately created based on the post-correction prediction dentition model 3. It can be, moreover, can easily and accurately perform the mutual alignment of correcting anterior string image 12 and the correction after the predicted teeth image 13 on the basis of the index image data 7 and 8.

  According to the orthodontic support system 1, since the index members 4 and 5 include the plate-like body 25 and the protrusions 26 provided on the plate-like body 25, the index members 4 and 5 are provided. By providing in the pre-correction dentition model 2 and the post-correction prediction dentition model 3, the pre-correction dentition model 2 and the post-correction prediction dentition model 3 are imaged and used as image data for a computer or the like. Based on each of the index members 4 and 5, the index image data 7 clearly indicating the reference position of the pre-correction dentition image 12 based on the pre-correction dentition model 2 and the post-correction predicted dentition based on the post-correction prediction dentition model 3 Index image data 8 clearly showing the reference position of the image 13 can be obtained, and thus the post-correction predicted tooth model 12 based on the pre-correction dental model 2 and the post-correction predicted dental model 3 The position of the overall display position relative to the column image 13 Together can easily and accurately performed. Further, according to the orthodontic support system 1, the protrusions 26 of the index members 4 and 5 have a hemispherical shape, and thus the entire mutual display of the pre-correction dental image 12 and the post-correction predicted dental image 13. The position can be matched even more easily.

  According to the orthodontic support system 1, the placement device 6 supports the holding means 31 that holds the index members 4 and 5, the holding means 31, and the pre-correction orthodontic model 2 and the post-correction predicted dental model 3. Since the support means 32 installed on each model tooth 21 and the position adjusting mechanism 33 for adjusting the position of the holding means 31 with respect to the pre-correction dental model 2 and the post-correction predicted dental model 3 are provided. In addition, the index members 4 and 5 can be accurately arranged at arbitrary reference positions with respect to the pre-correction dentition model 2 and the post-correction predicted dentition model 3, and the position of the holding means 31 is adjusted by the position adjusting mechanism 33. The position of the index member 4 with respect to the entire pre-correction dentition model 2 and the position of the index member 5 with respect to the entire post-correction prediction dentition model 3 are adjusted in the same manner for each of the row model 2 and the post-correction prediction dentition model 3. Position and positive It can be matched to, and Thus, can more accurately match the entire display position of mutual straightening front teeth string image 12 and the correction after the predicted teeth image 13.

  According to the orthodontic system 1, the support means 32 has the tip 51, and the tip 51 abuts against the dents in the occlusal surfaces 21 a of the plurality of model teeth 21, respectively. Since the plurality of upright pins 52 to 55 are provided on the upper side, the support means 32 can be easily provided on the respective model teeth 21 of the pre-correction dentition model 2 and the post-correction predicted dentition model 3. It can be installed accurately.

  According to the orthodontic support system 1, the result of position adjustment by the pre-correction dentition image data 9, the post-correction predicted dentition image data 10, the tooth image data 16, and the overall position adjustment means 15 and the tooth position adjustment means 18. Storage means 19 for storing the data indicating the respective data, once the above-mentioned various data is once created by the orthodontic support system 1, the various data can be referred to later, Thus, it is possible to favorably support the preparation of orthodontic mouthpieces having various shapes corresponding to the stepwise correction plan of the orthodontic correction and the stepwise correction plan.

  The disposing device 6 includes a telescopic telescopic bridge arm, an X direction axis, and a Z direction axis instead of the bridging arms 56 and 57, the X direction axis 58, and the Z direction axis 59. Also good.

  The orthodontic support system 1 is provided on the annular plate-like body 201 and the plate-like body 201, for example, as shown in FIG. 11 (a) instead of the index members 4 and 5, and viewed from above. An indicator member 203 having a projecting portion 202 that is semicircular may be provided. The annular plate-like body 201 shown in FIG. 11A is a triangular ring, but may be, for example, a square ring, a polygonal ring, an annular ring, or the like. The three bent portions 204 of the triangular annular plate-like body 201 shown in FIG. 11A are provided with protrusions 202, respectively, but the protrusions 26 are provided instead of the protrusions 202. Also good. In addition, the orthodontic support system 1 replaces the index members 4 and 5 with, for example, a T-shaped plate 205 and three end portions of the plate 205 as shown in FIG. Each of the index members 208 may be provided with a protrusion 207 that is provided on each of the 206 and has a circular shape when viewed from above. The plate-like body 205 shown in FIG. 11B is T-shaped, but may be a cross shape, for example, and in such a case, four protrusions 207 may be provided. . Although the protrusions 207 are respectively provided on the plate-like body 205 shown in FIG. 11B, the protrusions 26 or the protrusions 202 may be provided instead of the protrusions 207.

It is a conceptual explanatory view of an example of an embodiment of the invention. It is plane explanatory drawing mainly of the arrangement | positioning apparatus of the example shown in FIG. It is front explanatory drawing mainly of the arrangement | positioning apparatus of the example shown in FIG. It is side explanatory drawing mainly of the arrangement | positioning apparatus of the example shown in FIG. (A) And (b) is explanatory drawing mainly of a holding means and an index member of the example shown in FIG. It is a conceptual explanatory drawing regarding the program mainly stored in the memory | storage means of the example shown in FIG. It is a conceptual explanatory drawing regarding the data mainly stored in the memory | storage means of the example shown in FIG. It is explanatory drawing regarding the screen display of the dentition image by the screen display means mainly of the example shown in FIG. It is explanatory drawing regarding the screen display of the dentition image by the screen display means mainly of the example shown in FIG. It is explanatory drawing regarding the screen display of the dentition image by the other screen display means mainly of the example shown in FIG. (A) is a plane explanatory view of another index member of the example shown in FIG. 1, (b) is a plane explanatory view of still another index member shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Orthodontic support system 2 Pre-correction dentition model 3 Post-correction prediction dentition model 4, 5, 203, 208 Index member 6 Arrangement device 7, 8 Index image data 9 Pre-correction dentition image data 10 Post-correction prediction dentition image Data 11 Image data generation means 12 Pre-correction dentition image 13 Pre-correction predicted dentition image 14 Screen display means 15 Position adjustment means 16, 125 Tooth image data 17, 127, 137 Tooth image 18 Tooth position adjustment means 19 Storage means

Claims (8)

  An index member indicating a reference position of each of a pre-correction orthodontic model having an orthodontic shape before orthodontic and a predicted orthodontic model having an estimated orthodontic shape after orthodontic correction, and the reference to the index member An arrangement device for arranging the index member on the pre-correction dental model and the post-correction predicted dental model to indicate the position, and the pre-correction dental model in which the index member is arranged by the arrangement device and the post-correction, respectively. Each of the predicted dentition models is imaged, and the index member disposed in the pre-correction predicted dentition model including the first index image data including the first index image data based on the index member disposed in the pre-correction dentition model. Image data generating means for generating predicted post-correction dentition image data including second index image data based on the above, and pre-correction dentition image data and post-correction prediction dentition image data generated by the image data generation means, respectively based on The first and second display positions of the screen display means for displaying the front orthodontic image and the post-correction predicted dentition image on the screen and the pre-correction and post-correction predicted dentition images displayed on the screen by the screen display means are first and second. For adjusting the display position of the tooth image based on the extracted tooth image data to the post-correction predicted dentition image based on the extracted tooth image data An orthodontic support system comprising position adjusting means.   The orthodontic support system according to claim 1, wherein the index member includes a plate-like body and a protrusion provided on the plate-like body.   The orthodontic support system according to claim 2, wherein the protrusion of the index member has a hemispherical shape.   The disposing device includes a holding unit that holds the index member, a supporting unit that supports the holding unit and is installed on each model tooth of the pre-correction dental model and the post-correction predicted dental model, and the correction of the holding unit The orthodontic support system according to any one of claims 1 to 3, further comprising a position adjustment mechanism that adjusts the positions of the front dentition model and the post-correction predicted dentition model.   The support means includes a plurality of standing pins that are respectively provided with a tip and are abutted with the depressions on the occlusal surfaces of the plurality of model teeth at the tip and are erected on the plurality of model teeth. The orthodontic support system according to claim 4.   Claims further comprising storage means for storing pre-correction dentition image data, post-correction predicted dentition image data, tooth image data, and data indicating the result of position adjustment by each of the position adjustment means and the tooth position adjustment means. The orthodontic support system according to any one of 1 to 5.   The indicator member used for the orthodontic assistance system as described in any one of Claim 1 to 6.   The disposition apparatus used for the orthodontic assistance system as described in any one of Claims 1-6.

Images